Adjustable candle socket mounting



Sept. 29, 1931. H.- HUBBELL, JR 1,824,955

ADJUSTABLE CANDLE SOCKET MOUNTING Filed May 5, 1928 Patented Sept. 7 29,1931 ir-ED] ATES HARVEY HUB'IBELLI', an; or"

BRIneEroR'r, conivncrrcur f AnJUsr-ABnn c NDLE "sooxnr MOUNTINGApplication filed Ma} 3,

This invention relates to candle sockets for I lighting fixtures, andhas foran object to provide animproved adjustable mountlng for thesesockets. u e a It is also an object of the inventionto provide animproved mounting of this type in which the adjustment depends on asingle screw only which will lock the elements in a rigid manner, andmay be adjusted to any 1c point throughout the entire range. I

It is a further ob 'ect' of the invention to provide an adjustablesocket in which the range of adjustment forthe same length of socket isgreater than that in the constructions now generally in,use.' M

. WVith the above and'otherobjects in view, the invention consists incertain novel features of construction,combinations and'larrangements ofparts as will be'more fully described, various constructionsillustratlng my invention being shown 1I1 tl 16 accompanying drawings.In these drawings,

Fig. 1 is a rear elevation of'a candle socket involving my invention,the ,enclosing 'cas- 2n ing being removed and the cup be ng. shown insection. 1 g i X p I Fig. 2 is a sideelevation'of the same looking fromthe right-of Fig.1. v 1

Fig. 3 is a transverse seection substantially on line 33 of Fig. 1. p

Fig. l is a' rearnelevation" similar to- Fig.

1 but showing the-useof the invention on a smaller type of candlesocket,particularly as made from bakelite or similar material. 3 Fig.5-is a side elevation thereoflooking fromthe right of Fig.

Fig. 6 is a transversesectionsubstantially on line 6-6 of Fig. 4. i

Fig. 7 is a rear elevation similar to Figs. 1

and l showing my invention as applied to an adjustable candlekeyless'socketg I l Fig. 8 is a side elevation thereoflooking from theright of Fig.7 showing the' fibre lining in place, and

1928. Serial No. 274,895.

Fig. 9"is a transverse section substantially on line 9-9 of Fig; 8..

Referring to Figs-1 to 3 inclusive, the socket comprises aninsulatingbody of poreelain or other' suitable insulating material. Thisconstruction of body, switch mechanism andelectrical elements carriedthereby is substantially the same as'that disclosed in. theapplication'of Charles E. Avery, Serial No. 287,689 filed June 23, 1928and althoughmy improved; support for this socket was designed primarilyfor" this" construction and arrangement of socket it is not necessarilyconfined to use therewith. In this construction' the body member 10 isof substantially inverted L-shape, the upper or t-ransverse portion 11thereofbeing substantially cylindrical, while the upright bodyporti'onis substantially semi-cylindrical, as shown in Fig. 3. This leaves anopenside for the body. running throughout substantially the entirelength of the body, and provides plenty of space for mounting the switchmechanism'12, not shown in detail, as it forms no part of myginvention,and the' cooperating elements, such as the pull .chain 13 for operatingthe switch with a step by step movement in a manner well known to pullsockets, and -thebracket l l carrying the stop guides 15' and 16'for'the chain. At the upper end of the body is-mounted the screw shellcontact 17 which encloses the'usu'al central contact, not shown,'forreceiving and engaging the' usuallamp' contacts in a manner "well known.Asthe' switch mechanism and related elements are allzflmounted on theforward open sideof the'body, the rcarxcircular' wall is left free forthe connection to the This support or hickey 20 is threaded at its lowerend 21 for threaded attachment with the threaded end 22 of the pipe orconduit 23, which is the usual pipe or conduit provided on this type ofelectrical fixture, and the hickey also clamps the finishing cup 24 tothe pipe. The end of the hickey may be extended upwardly and over theend ofthe pipe, as shown at 25, to carry a set screw 26 adapted toengage the end of the pipe. and prevent looseningof the hickey in use.The support includes .anup wardly extending portion 27 which is providedwith a longitudinal slot 28, preferably opening through the upper endthereof, as this construction facilitates application or removal of thesocket construction. This upright portion of the support is preferablycurved to correspond with the curvature of the body 10 and is 'seated ina longitudinal recess or channel 29 in the curved rear wall of the body10 so that the outer surface of the support is substantiallyflush withthe curved surface of the body; This support is adjustably secured tothe body by means of a clamping screw 30 which has a tapered head 31.The screw is threaded into an eyelet or tubular rivet 32 inserted intothe body, and its inner end may be covered with an insulating fibreplate 33 to insulate this insertfrom various electrical elements as theconductor 34 leading to the screw 18. This screw passes through the slot28, and the tapered walls of the head thereof clamp against the sideedges of the slot to secure the body in different adjusted positions onthe support. .It will be apparent that the bindingaction of this taperedheadon the opposite edges of the slot will tend to separate the sides ofthe support on opposite sides of the slot. I, therefore, mount in the.recess 35 ofthe body a metal guide member 36 which is curvedand hasoutwardly extending flanges 37 at its opposite ends to engage the sideedges of thesupport 27 and will prevent their separating under theaction of the screw. In case the body is made of porcelain or similarmaterial this metal guide should be used because the porcelain isbrittle and not sufliciently strongto be relied on for the purpose ofpreventing the sides of the support from separating, under action of theclamping screw. 7

In case, however, the body is made of bakelite or similar material whichis much stronger and tougher and may be molded more accurately than theporcelain, this metal guide is unnecessary. This is the arrangementshownin Figs. 4, 5 and 6. In thisconstruction thebody 38 is molded ofbakelite or similar material although it is substantially the same shapeas the body 10 in the first form. This material is usually used forcandle sockets of smaller constructhe first form and is mounted on theopen side of the substantially semi-circular body portion the same as inthe first form. Clamping screw 30 is threaded into an insert 39 moldedinto the body, and the tapered head 31 clamps against the opposite sidesof the slot 28 in the support 27, the same as in the first form. As amatter of fact, this hickey and support is the same as that of the firstform except that it is smaller in size. The upright portion of thehickey seats in a longitudinal recess or channel 40 formed in the rearcurved wall of the body, and as indicated above,"because the material ofwhich this body is made is much stronger than porcelain, the side wallsof this recess are sufficientlystrong to guide the support 27 andprevent separation of the sides thereof under the clamping action of thescrew 30.

The two socket constructions described above are pull socketconstructions, that is they have a switch operated by a pull chain. InFigs. 7,8 and 9, I have shown how this support and hickey may be usedfor a keyless socket in which no switch is employed. In thisconstruction the insulating block or body portion 41 is substantiallycylindrical, but the substantially semi-cylindrical lower portion usedin the first two forms is omitted because the switch mechanism isomitted. A metal bracket or support 42'is secured to the under side ofthis block and projects downwardly therefrom a suitable distance and isformed at its lower end with a guide 43 of substantially the same shapeas the guide 36 of Figs. 1, 2 and 3, and which guide has flanges 44engaging the opposite sides of the support 27 to provide a guidetherefor and prevent separation of the side portions of the support 26under the clamping action of the screw 30, which in'this case isthreaded into a tapped opening in the inner or connecting wall of thisguide. yThe bracket 42 may be mounted on the body by suitable eyelets 45molded in the body and extending through and riveted over in the usualmanner, or it may be secured by any other suitable means.

The rear curved wall of'this block or body 41 is also provided withlongitudinal recesses or channels 46 to receive the support 27 the sameas in the other forms. A fibre lining is shown at 47 enclosing the bodyand it may be extended down as shown in dotted lines to enclose thesupport.

It will be apparent from the foregoing de scription that the guidechannel and the support 27 may be extended throughout substantially theentire length of the body, and that the slot 28 for the clamping screw30 may also be extended, through substantially the entire length. This,therefore, gives a maximum adjustment for a given length of socket andgives a much greater range of adjust ment for the same length of socketthan other types of adjustable supports for this type. of devices ofwhich I am aware. It also perlnits the secure clamping of the body inany adjusted position, and it may be adjusted to any position throughoutthe entire range of adjustment.

Having thus set forth the nature of my invention, what I claim is:

1. In a candle socket,an insulating body member having a longitudinalrecess in one side wall thereof, a support extending into said recesswith its edges guided by the sides of the recess and providedwith alongitudinal slot, and a securing means mounted on the body andextending into said slot and adapted to press laterally on the sides ofthe slot to secure the body in adjusted positions onv justed positions,and guide means associated with said screw to engage the opposite sideedges of the support to limit lateral movement of the si-d'esof thesupport under the action of said screw. V

In testimony whereof I afiix my signature.

HARVEY I-IUBBELL, J R.

the support, the edges of said recess limiting the movement of thesupport under the influence of the lateral action of the securing means.

2. In a candle socket, an insulating body member, a support having alongitudinal slot and extending along the outer wall of the body, and ascrew secured to the body and having a tapered head engaging theopposite sides of the slot to secure the body in different adjustedpositions, there being means to engage the opposite side edges of thesupport to prevent spreading of the support under action of the screw.

3. In a candle socket, an insulating body member substantiallysemi-circular in cross section, switch mechanism mounted on the flatside of said body, a support extending longitudinally of the body on theouter curved wall thereof and having-a longitudinal slot, and a clampingscrew attached to said body and extending through the slot.

4. In a. candle socket, an insulating body member having alongitudinally extending recess in its outer wall, a longitudinallyextending support in said recess and guided by I the side edges thereof,said sup-port being provided with a longitudinal slot, and a clampingscrew having a tapered head in said slot and adapted to clainp againstthe side edges thereof, and a support for the screw secured to the body.

5. In a candle socket, an insulating body member, a guide member securedto the body and having spaced flanges, a support guided between theflanges and provided with a longitu-dinal slot, and a clamping screwassociated with said guide member and provided with a tapered head inthe slot to clamp against the side edges thereof.-

6. In a candle socket, an insulating body member, a support extendingalong the wall of said body and provided with a longitudi-' nal slot, aclamping means in the slot adapted to press laterally on the sides ofthe slot to secure the parts in different adjusted positions, and guidemeans for the support engaging the opposite sides thereof to limitlateral movement of the sides of the support a under the action of theclamping means.

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